The 351W manifold is available to work with 95MM or 105MM GM LS throttle bodies
EFI fuel rails are machined for -8AN o-ring fittings with passages large enough to accommodate high fuel flows and dampen pressure pulsations in the fuel system and come standard with EFI Hi-Ram kits.
Plenum Top Gasket Type - 3/32" Round O-ring Cord
Manifold is designed for a 9.5" deck height.
Requires the Use of Holley EFI Dual Sync Distributor - 565-111